Spacecraft

NASA’s Mars Ascent Vehicle will attempt a wildly unconventional liftoff to bring Red Planet samples back to Earth

Although the space-junk strike on March 4 will probably be harmless, such events may soon become more common—and dangerous

In the next five years, the nation hopes to launch a robotic craft to an asteroid, two lunar missions and an orbital observatory

Space agencies are partnering with car manufacturers to custom build new rovers—or retrofit commercial vehicles—for future missions to the moon and Mars

Despite some unexpected challenges, team members are setting lofty goals for the rover in 2022

The space agency has announced the timing of the ISS’s demise as part of a long-planned transition to private orbital outposts

After decades of false starts, a new push for nuclear-powered rocketry could make or break the space agency’s plans to send astronauts to the Red Planet

As we continue to push into space, the 55th anniversary of the deadly fire reminds us to prioritize both safety and people

The ambitious observatory has arrived at its home—near a gravitationally stable spot called L2—for a premier view of the universe

The observatory’s unprecedented infrared measurements might at last bridge a growing rift between astronomers over how fast the universe is expanding

Despite efforts to reduce light pollution from the satellites, their disruptions of astronomical observations are increasing at an alarming pace

The orbital debris created in the explosions is dangerous, long-lasting and a threat to the growing space economy